Risk spot analysis pre-control theory is a new method that is found out by electric workers in practice.
危险点分析预控理论，是电力职工从反事故的实践中摸索出来的新方法。
2
The experiments , comparison and analysis for the three thickness measurement methods :two-beam diffraction method , contamination spotmethod and contamination line method were carried out.
前言： 对用电子显微镜测量薄膜厚度的三种方法：双束衍射法、污斑法、污线法进行了实验及比较分析。
3
By employing the VCR mining method, the experiment of blasting funnel must be carried out on the spot in order to ensure the parameters in mining by globular dynamite charge.